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How do you suppress command output?
To silence the output of a command, we redirect either stdout or stderr — or both — to /dev/null. To select which stream to redirect, we need to provide the FD number to the redirection operator.
How do I hide my curl output?
The -s or –silent option act as silent or quiet mode. Don’t show progress meter or error messages. Makes Curl mute. It will still output the data you ask for, potentially even to the terminal/stdout unless you redirect it.
How do I hide grep output?
The quiet option ( -q ), causes grep to run silently and not generate any output. Instead, it runs the command and returns an exit status based on success or failure. The return status is 0 for success and nonzero for failure.
How do I turn off echo in terminal?
You can use ‘-s’ option of read command to hide user input….
- This is certainly the way I’ve done it before, if memory serves.
- Yes, it leaves echo switched off afterwards in case it had been switched off already.
- i am new to unix.
- More general, better than Wikipedia when you’re new to unix @AbhishekGupta: 1.
What does curl — silent do?
When we added an option called –silent to make curl be truly silent, we also made it hush the error message. curl still returns an error code, so shell scripts and similar environments that invoke curl can still detect errors perfectly fine.
What is curl silent mode?
Silent or quiet mode. Don’t show progress meter or error messages. Makes Curl mute. It will still output the data you ask for, potentially even to the terminal/stdout unless you redirect it. Try it out: curl http://example.com –output my.file –silent.
What does echo is off mean?
That means that every command issued in a batch file (and all of its output) would be echoed to the screen. By issuing, the ‘echo off’ command, this feature is turned off but as a result of issuing that command, the command itself will still show up on the screen.